29 lines
394 B
SQL
29 lines
394 B
SQL
WITH dupes AS (
|
|
SELECT
|
|
uid,
|
|
link,
|
|
Row_number() over(
|
|
PARTITION by link
|
|
ORDER BY
|
|
link
|
|
) AS RowNumber
|
|
FROM
|
|
post
|
|
)
|
|
DELETE FROM
|
|
post
|
|
WHERE
|
|
uid IN (
|
|
SELECT
|
|
uid
|
|
FROM
|
|
dupes
|
|
WHERE
|
|
RowNumber > 1
|
|
);
|
|
|
|
ALTER TABLE
|
|
post
|
|
ADD
|
|
UNIQUE (link);
|